122012232300021 has 16 divisors (see below), whose sum is σ = 191920930684928. Its totient is φ = 67472202193200.

The previous prime is 122012232300019. The next prime is 122012232300031. The reversal of 122012232300021 is 120003232210221.

It is not a de Polignac number, because 122012232300021 - 2¹ = 122012232300019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012232300031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93711391285 + ... + 93711392586.

It is an arithmetic number, because the mean of its divisors is an integer number (11995058167808).

Almost surely, 2^{122012232300021} is an apocalyptic number.

It is an amenable number.

122012232300021 is a deficient number, since it is larger than the sum of its proper divisors (69908698384907).

122012232300021 is a wasteful number, since it uses less digits than its factorization.

122012232300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187422783912.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122012232300021 its reverse (120003232210221), we get a palindrome (242015464510242).

The spelling of 122012232300021 in words is "one hundred twenty-two trillion, twelve billion, two hundred thirty-two million, three hundred thousand, twenty-one".